EP 2497259 B1 20150401 - Emergency signalling in an IP multimedia subsystem network
Title (en)
Emergency signalling in an IP multimedia subsystem network
Title (de)
Notsignalgebung in einem IMS-Netzwerk
Title (fr)
Signalisation d'urgence dans un réseau de sous-système multimédia IP
Publication
Application
Priority
EP 2009064463 W 20091102
Abstract (en)
[origin: WO2011050861A1] A method and apparatus for handling emergency signalling in an IP Multimedia Subsystem network. A Proxy-Call Session Control Function receives a message requesting set up of a session. The message is associated with an IP Multimedia Private Identity. The P-CSCF determines that the message relates to an emergency call. If an emergency override tag associated with the IMPI is provisioned or set at the P-CSCF, then the message is forwarding the SI P message to a Serving-Call Session Control Function (S-CSCF) for further handling. However, if an emergency override tag associated with the IMPI is not provisioned or set at the P-CSCF, the message is forwarded to an Emergency-Call Session Control Function (E-CSCF). The invention allows the P-CSCF to exercise control over the handling of emergency signalling.
IPC 8 full level
H04L 29/06 (2006.01); H04M 3/42 (2006.01); H04M 3/51 (2006.01); H04M 11/04 (2006.01); H04W 4/22 (2009.01); H04W 4/90 (2018.01); H04W 76/00 (2009.01); H04W 80/10 (2009.01)
CPC (source: EP US)
H04L 65/1016 (2013.01 - EP US); H04L 65/1045 (2022.05 - EP US); H04L 65/1069 (2013.01 - EP US); H04L 65/1104 (2022.05 - EP US); H04M 3/42187 (2013.01 - EP US); H04W 4/90 (2018.01 - EP US); H04W 76/50 (2018.01 - EP US); H04M 2242/04 (2013.01 - EP US); H04W 80/10 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011050861 A1 20110505; CN 102598645 A 20120718; CN 102598645 B 20150819; DK 2497259 T3 20150420; EP 2497259 A1 20120912; EP 2497259 B1 20150401; IN 1872DEN2012 A 20150821; JP 2013509757 A 20130314; JP 5470464 B2 20140416; US 2012221707 A1 20120830; US 8996673 B2 20150331
DOCDB simple family (application)
EP 2009064463 W 20091102; CN 200980162356 A 20091102; DK 09749075 T 20091102; EP 09749075 A 20091102; IN 1872DEN2012 A 20120301; JP 2012535637 A 20091102; US 200913505336 A 20091102